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Obstetrics/Gynecology

Maryam Hadiashar, MD

Sees patients in Redwood City, CA · California

Summary

Dr. Maryam Hadiashar, MD is an OB-GYN at 905 Maple St, Redwood City, CA 94063. Phone: (650) 399-2000. Accepts Medicare assignment. NPI 1306011259. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: OB-GYN (Medicare lists Obstetrics/Gynecology)
  • Address: 905 Maple St, Redwood City, CA 94063 · Directions
  • Phone: (650) 399‑2000
  • Medicare: Accepts Medicare assignment
  • Group practice: Permanente Medical Group Inc
  • Medical school: graduated 2005 (21 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Maryam Hadiashar, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Maryam Hadiashar accept Medicare assignment?
Yes. Medicare's clinician data says Maryam Hadiashar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Maryam Hadiashar's NPI number?
1306011259. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Maryam Hadiashar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Maryam Hadiashar as a member of this group (CMS data updated October 2, 2026).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Redwood City

Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.

All OB-GYNs in Redwood City →

Other clinicians in Permanente Medical Group Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Graduation year2005 (21 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1306011259
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians